What will be the boliling point of bromine when `174.5 mg` of octa-atomic sulphur is added to `78 g` of bromine? `k'_(b)` for `Br_(2)` is `5.2 Kmol^(-1) kg` and `b.pt.` of `Br_(2) " is " 332.15 K`

Explanation

Given, `w= 174.5xx10^(-3)g, W=78 g`,
`m=8xx32= 256` ( `because` octa-atmic), `k_(b)= 5.2`
`because DeltaT=(1000k_(b)w)/(mW)`
`=(1000xx5.2xx174.5xx10^(-3))/(78xx256)= 0.045`
`:.` Boiling point of `Br_(2)` solution
`=332. 15 +DeltaT=332.15+0.045`
`=332.195 K`